i think we understand technology more. i don't believe that going away from electronic trading works because i believe it actually creates much more transparency and much more of an audit trail than human trading. and these are, in fact, human errors rather than technology errors. >> that's true. that's right. we do commit errors too. thank you for that. >>> the nasdaq flash freeze is the latest in a string of market snafus, trading glitches and flash crashes in recent years. the flash crash in 2010, the botched bats ipo and facebook ipo, the fake ap tweet and goldman sachs erroneous trades earlier this week have all raised questions about whether market participants are comfortable with the risk computer glitches can pose to markets. we want to know from you, do you actually trust the system? if you want to join the conversation on "worldwide exchange," get in touch with us by e-mail at worldwide@cnbc.com, via twitter, @cnbcwex, or direct to me, @carolincnbc. >>> and still to come on the show, china was among the biggest